APA (7th ed.) Citation

(1798). The Key. [Verlag nicht ermittelbar].

Chicago Style (17th ed.) Citation

The Key. Frederick Town, Md: [Verlag nicht ermittelbar], 1798.

MLA (8th ed.) Citation

The Key. [Verlag nicht ermittelbar], 1798.

Warning: These citations may not always be 100% accurate.